Black screen after changing processor
epango Posted messages 37194 Registration date Status Membre Last intervention -
Hello,
First of all, here is my setup:
- Motherboard: MSI B550 gaming edge wifi
- Processor: Ryzen 7 5800X3D
- Graphics card: 6800XT
This morning I changed my processor from a Ryzen 5 3600X to a Ryzen 7 5800X3D.
By mistake, I forgot to update the BIOS and since then I've had a black screen even though the PC turns on and everything runs properly.
I searched for a solution on forums and the solution I found doesn’t work for me.
Let me explain. I saw that I needed to put the old processor back in to update the BIOS and then replace it with the new one. However, now when I put the old processor back in, it is no longer recognized by the PC and I also get a black screen.
I also saw that I could plug in a USB drive and press the flash BIOS button at the back, but that doesn’t work either. I have a solid red LED and nothing else lights up.
Could you try to help me?
Thank you in advance for your help.
8 réponses
Are you sure you plugged it into the motherboard? If that's the case, it's normal that you don't have any image since the Ryzen 7 5800X3D doesn't have an integrated GPU. You must connect it to the graphics card and not to the motherboard.
It should be noted that when you add a dedicated GPU, even if the CPU has an IGP, it is disabled by the BIOS to conserve resources. The video outputs, no longer connected to the video processor, become non-functional.
Hello,
It’s likely that your motherboard does not have an updated BIOS to support a Ryzen 7 5800X3D. You should update your BIOS.
Thank you for your response.
How can I update my BIOS when I have a black screen and the old processor is not recognized with a black screen as well?
I managed to update the BIOS with a USB stick and the flash BIOS button. The PC is running, but I still have a black screen with the message "DisplayPort no signal" appearing.
I suppose you have connected your monitor to the GPU and not the motherboard. Check the LEDs known as MSI's Ez Debug LEDs (CPU, DRAM, VGA, and Boot) to see if there is one or more LEDs that remain lit after powering on the PC. They indicate which component or components are causing the problem.